 /*******************************************************************************
  * Copyright (c) 2004, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.cheatsheets;

 /**
  * For monitoring the execution of a cheat sheet.
  * <p>
  * This class is used in conjuction with the "listener" attribute on
  * extensions to the extension point
  * "org.eclipse.ui.cheatsheets.cheatSheetContent". Clients should declare
  * a subclass that implements {@link #cheatSheetEvent(ICheatSheetEvent)}. The
  * listener subclass must be public, and have a public 0-arg constructor. The
  * listener subclass is instantiated as the cheat sheet is opened, and discarded
  * after the cheat sheet is closed.
  * </p>
  *
  * @since 3.0
  */
 public abstract class CheatSheetListener {
     
     /**
      * Creates a new cheat sheet listener.
      */
     public CheatSheetListener() {
         // do nothing
 }

     /**
      * Notifies this listener of the given cheat sheet event.
      *
      * @param event the cheat sheet event
      */
      public abstract void cheatSheetEvent(ICheatSheetEvent event);
 }

